JP4189220B2 - Refractive intraocular implant - Google Patents

Description

Detailed Description of the Invention

(Technical field)
The present invention relates generally to the field of intraocular implant lenses, and more particularly to intraocular implant lenses used for refractive vision correction.

(Background technology)
For a long time, one goal of ophthalmologists has been to provide patients with an alternative to glasses. Contact lenses, corneal incisions, LASIK surgery or laser vision correction surgery have been developed. It is estimated that over 2 million LASIK surgeries were performed in 2000. Despite the generalization of laser surgery, this does not mean that there are no shortcomings or drawbacks. For example, recent data shows that about 5-10% of patients undergoing laser refractive surgery have suboptimal results. For example, even in final vision correction, some kind of vision correction is required or the patient experiences a “ring” like cataract. In addition, up to 50% of patients experience dry eye symptoms after laser surgery.

  In response to the foregoing situation, ophthalmologists are heading for intraocular lens implantation surgery in an effort to advance refractive vision correction techniques. For example, an intraocular refractive lens described in US Pat. No. 5,1932,319 to Worst is located in the anterior chamber during surgery and is used to correct refractive errors in addition to a human lens Is done. This lens includes an optical portion (optical component) having an inner concave shape and an outer convex shape. At least one pair of flexible pinching arms is attached to the outer periphery of the optical component and pinches a small portion of the entire iris surface to maintain the implant in place. Despite the above, the worst lenses are not widely used. The reason is that the lens requires a hard and inflexible material to secure it to the iris and therefore requires a large incision of 6 mm or more. Furthermore, the worst lenses are difficult to implant and require dexterous surgical techniques with both hands, which is possible with relatively few ophthalmologists.

  Also, other anterior chamber implants have been tried but have not been successful. For example, US Pat. No. 4,575,374 to Anis discloses an anterior chamber lens consisting of an optical element and four elongated supports. Each support part bends independently of each other. Also, US Pat. No. 4,166,293 to Anis discloses an anterior chamber implant for the replacement of cataracts. The implant comprises an optical element and three underlying loops that can be fitted behind the iris. The fourth loop is on one of the other loops and on the iris when the implant is positioned in the eye. The implant is held in place by an attachment member, which attaches the fourth loop to the underlying loop by penetrating the iris. Another anterior chamber implantable implant is disclosed in US Pat. No. 4,177,526 to Kuppinger. A pair of opposing arms are attached to the optical element. Each arm is inserted behind the iris and pinches the back of the iris, holding the implant in place. Another anterior chamber implant lens is disclosed in US Pat. No. 5,047,052 to Dubroff, which describes the optical element and four supports outwardly therefrom. The support is flexible and can be moved independently. Furthermore, when the implant is inserted and positioned by conventional means, the end of the support is adapted to rest within an optical angle, i.e. at the intersection of the cornea and the iris. It should be noted that none of the above-described implant lenses are widely used. In fact, only one lens (ie, the worst lens) is currently used in the European market for limited applications. All of the above-described implant lenses have experienced surgical or clinical failure. Failures include lens insertion and attachment problems, intraocular or iris bleeding, inflammation, tissue deformation, and potential glaucoma induced in the lens.

  One object of the present invention is to provide an improved refractive implant that solves the above-mentioned problems.

  Another object of the present invention is to provide an improved refractive implant with minimal surgical invasiveness.

  Another object of the present invention is to provide an improved refractive implant with fewer side effects such as dry eye and inflammation.

  An additional object of the present invention is to provide an improved refractive implant that is easily implantable and easily removable if necessary.

  Yet another object of the present invention is to provide an improved refractive implant that accurately corrects the field of view, thus obviating the need for subsequent surgery.

  A related object of the present invention is to provide an improved refractive implant that is easily manufacturable.

  Yet another object of the present invention is to provide an improved refractive implant that does not require expensive equipment such as a laser.

(Summary of Invention)
In accordance with the present invention, there is provided a refractive intraocular lens that is implantable into the eye and supported by the iris. This lens is characterized by its ability to be easily inserted and removed with minimal damage to the eye tissue. The lens includes an optical element that includes a front side, a rear side, and an outer peripheral edge and produces a preselected optical effect. This lens is foldable or deformable. The support is coupled to the optical means and is outward from the optical element. The support includes an intermediate portion positioned between the proximal end and the distal end. The proximal end is coupled to the optical element, the intermediate portion projects downwardly and away from the rear side of the optical element, and the distal end is a pointed tip. The middle portion includes a shoulder that supports the intraocular lens over the iris. The distal end of the support includes fixing means for securing the iris for attaching the lens to the iris, and the pointed tip is configured and arranged to penetrate the iris.

  In a second embodiment of the invention, the refractive intraocular lens is attached to the iris by staples adapted to span over a portion of the support. The staple is compressible from a relaxed state to a tensioned state. Thus, when the staple is unfolded and placed in a position overlying the support, the staple shrinks and then attaches to the iris when it is relaxed. This fixes the position of the intraocular lens on the iris. Furthermore, the staples can be attached to the iris from the tensioned state to the relaxed state, contrary to the process described above.

  In a third embodiment of the invention, at least one of the plurality of support portions has a hole defining an opening. A retaining member is received within the aperture and is adapted to spread and grasp the iris tissue. More particularly, the fastening member comprises a shaft having an upper end and a lower end. The lower end has a flexible protrusion and the upper end has a diameter that is larger than the diameter of the opening, so that when the retaining member is inserted into the opening, the protrusion is contracted and the retaining member is in the opening. Slip. When the protrusion exits the bottom of the opening, it catches the iris and the protrusion is embedded in the iris, thereby attaching the intraocular lens to the iris.

(Detailed description of preferred embodiments)
The present invention will be described in more detail below with reference to the accompanying drawings showing embodiments. As will be appreciated, those skilled in the art can modify the invention described herein while achieving the preferred effects of the invention. Furthermore, the following description should be understood as a broad disclosure directed to those skilled in the art and is not intended to limit the invention.

  Referring to the drawings, in particular, FIG. 1 shows a human eye. The eye structure includes a cornea 50, an iris 52, a sclera 54, a vitreous body 56, an anterior chamber 58, an anterior chamber corner angle 60, a trabecular meshwork 62, an posterior chamber 64, and a human transparent lens 66. Although this description is specifically directed to the human eye, the present invention can be applied to various animal eyes with only minor modifications. For example, mammals such as dogs, cats, and horses can be injured when their visual acuity deteriorates with age, and vision correction surgery as contemplated by the present invention can prevent injury and prolong life.

  With reference to FIGS. 2-8, a first embodiment of the invention is shown. An intraocular lens, generally designated 100, is implantable into the eye and includes optical means or optical element 102 and one or more support means or support 110. The optical element 102 is generally circular and includes a front side, a rear side, and an outer peripheral edge 108. The diameter of the optical element 102 is in the range of about 5 mm to 6 mm. Furthermore, the optical element 102 has a variable curvature on the front side and a curvature on the rear side depending on whether myopia or hyperopia is corrected. Additional curvature radius changes are added for cylinders (astigmatism), presbyopia, bifocal or multifocal. The characteristics of the selected optical element 102 are left to the surgical decision of the ophthalmologist performing the implant process. In addition, the optical element 102 and the plurality of elongated supports 110 must be manufactured from a biologically inert material, and the optical element 102 satisfies the required optical conditions and surgical insertion requirements. Must be manufactured from the material to be. The term “biologically inert” is understood in the art to mean that it is not absorbed by bodily fluids and does not cause adverse reactions when implanted. Materials commonly used alone or in combination for intraocular lenses are silicone, acrylic, collagen, hydrogel and polymethylmethacrylate. Other suitable materials are eye glasses, crystals, and other polymeric materials.

  One or a plurality of support portions 110 are coupled to the optical element 100. The supports are in a direction outward from the optical element and are spaced from each other. Each support includes a proximal end 112, an intermediate portion 114, and a distal end 116 that are coupled to the outer peripheral edge 108 of the optical element. The plurality of supports also include riser means, ie risers, for maintaining the optical element spaced from the iris. In the illustrated embodiment, the intermediate portion 114 includes this riser, which protrudes downward to “jump over”, ie, to provide a spacing between the upper side of the implant and the surface of the iris, It is separated from the rear side of the optical element 102. In addition, the intermediate portion 114 includes a shoulder 115 that is adapted to support the implant 100 over the surface of the iris 52. The distal end 116 comprises an iris anchoring means for attaching an intraocular lens to the iris in the form of a pointed tip 118 adapted to penetrate the iris at the end of the intermediate portion. In a preferred embodiment, the length of penetration of the support is less than the total iris thickness, but is part of the total thickness, and preferably about 1/2 of the iris thickness. The length of penetration varies depending on the mass of the implant, the number and structure of the supports. It should be noted that the support is long enough to avoid interference with the muscle that controls the opening and closing of the pupil. In another approach, the staple is designed to pinch the iris but not necessarily through it, and the staple is attached to the intraocular lens. In the embodiment shown in FIGS. 2 to 6, four supports are shown. The four supports are divided into two pairs, each pair being in the outward direction, with its opposite ends away from the optical component. Further, each pointed tip 118 of each pair is positioned so as to approach each other. The embodiment shown in FIGS. 7 and 8 is essentially the same as described above, except that each pointed tip 118 is positioned away from each other. In either arrangement, the implant 100 is sufficiently secured over the iris.

In surgery, an incision of the order of 4.0 mm is made in the cornea or sclera by an ophthalmic surgeon. Using a forceps or instrument to insert an intraocular lens, the implant is folded, deformed, or rotated to reduce size and inserted into the eye and centered over the pupil opening . Next, each support portion is operated so that its tip enters the iris. The middle portion 114 of the support includes a shoulder that rests on the iris and limits the depth that the tip 118 can penetrate.

  A second embodiment of the invention is shown in FIGS. In this embodiment, the optical implant 200 is adapted to be implanted in the eye and attached to the iris. The implant 200 comprises optical means or optical elements 202 for producing preselected optical effects. The optical element 202 includes a front side 204, a rear side 206 and an outer peripheral edge 208. One or more loop support means or supports 210 are coupled to the optical element 202. The stapling means or staple 230 is adapted to straddle part of the support 210. Staple 230 is adapted to be operable from a relaxed state to a tensioned state when relaxed and when attached to the iris. In the embodiment described above, the staples in the relaxed state are expanded. The staples are then compressed (using the insertion tool described below), placed in a position over each support, and expanded substantially when relaxed. Returning to the original state, this fixes the position of the optical implant on the iris. The relaxed state and the tension state can be reversed with the same effectiveness. In the embodiment shown in FIGS. 9-14, the staple is dimensioned to penetrate a portion of the iris that is smaller than the entire iris, preferably about 1/2 of the iris thickness. As the reader will appreciate, the size and extent of iris penetration varies with the type of implant used. For example, in FIGS. 9 and 10, an optical implant having a pair of arcuate loop-shaped supports located on two opposite sides of the optical element is shown with staples. In FIGS. 11 and 12, an optical implant having four arcuate loop supports is shown with staples. Further, the support is configured such that the optical element is in a spaced relationship from the iris. In FIGS. 13 and 14, an optical implant 200 with a flexible curvilinear support is shown with staples 230. In this embodiment, the staples can be positioned such that the intraocular lens expands and contracts as the iris sphincter expands.

  The staple 230 used in the above-described embodiment is inserted using an insertion instrument 240 as shown in FIGS. It should be noted that the staples must be brought into the eye by the surgeon prior to insertion, and once adjusted, cannot be adjusted. For this reason, the instrument described in detail below is such that it is difficult to loosen the staples accidentally, and once released, the staples will automatically shrink and attach securely to the iris. Designed with safety. Based on the above, the instrument 240 includes a pair of operating rods or handles 242. The rod or handle 242 includes a finger loop 244 at one end. Finger loop 244 assists the surgeon during the insertion of the tip of instrument 240 into the eye in one-handed surgery. Opposing ends of each handle are divided into U-shaped brackets that support the block 246. At the center of block 246 is a hole that defines opening 248. The finger portion 250 is in a downward direction and an inward direction, and ends thereof become tabs 252 that are firmly grasped. The lock plate 54 also includes a U-shaped block having an elongated hole 256 that is positioned so that it is aligned with another block 246 when the pivot pin 258 is threaded therethrough. it can. A rectangular plate 260 is attached to the underside of the block, as best shown in FIG. This plate 260 delimits the longitudinally moving staple 230 in the instrument 240.

  In use, the two handles 244 of the instrument 240 are widened to widen the fingers 250 and the lock plate 254. The staple 230 is then inserted such that its arc-shaped intermediate portion is in contact with the plate 260 and its legs are positioned between the opposing tabs 252. Next, the two handles 242 are moved together to capture the staple 230 between the lock plate 254, the grip tab 252 and the plate 260. If force is subsequently applied, staples 230 are opened and expanded. The instrument 240 is then inserted into the eye so that the staple 230 is on the intraocular lens support in a spanning relationship. Next, the operating rods 242 are moved away from each other, which causes the locking plate 254 to move outward, and then the staple 230 can slide out between the gripping fingers, This shrinks into the iris.

  A third embodiment of the invention is shown in FIGS. In this embodiment, optical means or implant 300 is used that produces a preselected effect on the light that enters the eye, but the implant is implantable so that it is above the iris 52. The implant 300 includes an anterior side 302, a posterior side 304, and a peripheral edge 306. One or more support means or supports 308 are coupled to the implant 300 such that at least one support comprises a hole defining an opening. Fastening means 312 is used to fix the position of the intraocular lens on the iris.

  A fastening means or fastening member 312 can be inserted into the opening 310 and the iris tissue can be spread and grasped underneath. More specifically, the fastening means 312 has a shaft with an upper end 314 and a lower end 316. A flexible barb 318 is located at the lower end 316 and the upper end 314 has a diameter that is larger than the diameter of the opening 310. As shown in FIG. 17, the protrusion 318 is arranged to face outward when relaxed.

  In use, the implant 300 is centered on the iris. Next, the fastening member 312 is grasped with forceps (not shown) so that the protrusion 318 is compressed. The retaining member 312 is then guided into the opening 310 and downward pressure is applied to push the staple 312 through the opening 310, as the protrusion exits the opening at the posterior side 304. Touch to start to expand. When the upper end 314 contacts the surface of the support 308, the protrusion penetrates into the iris (in this embodiment about half the thickness of the iris) and the position of the implant 300 is fixed in the eye. The above process is repeated for each support and the number of fastening members used depends on the particular implant 300 shape selected by the surgeon.

  A fourth embodiment of the invention is shown in FIGS. In this embodiment, optical means or implant 400 is used that produces a preselected effect on the light that enters the eye, but the implant is implantable such that it is above the iris 52. The implant 400 includes an anterior side 402, a posterior side 404 and a peripheral edge 406. One or more support means or supports 408 are coupled to the implant 400 such that at least one support comprises a hole defining the opening 410. Fastening means 412 is used to fix the position of the intraocular lens on the iris. The fastening member 412 has a shaft 413 with an upper end 414 and an iris fixed or lower end 416. The end of the lower end 416 becomes an edge 415. The cut-out portion that forms the flexible hook or protrusion 418 is located in the immediate vicinity of the edge 415. The upper end 414 has a diameter that is larger than the diameter of the opening 410. In addition, the opening 410 of a support part is circular, and the shaft 413 is a rectangle. Although not shown, the fastening member 412 can be formed so as to be integrated with the support portion 408 and spread downward from the bottom. In another approach, the clasp member 412 is manufactured as a separate unit and is adapted with pressure into the aperture 410 so that the entire intraocular lens / clasp member can be inserted into the eye in one motion. The

  In use, the implant 400 is centered on the iris. The retaining member 412 is then grasped with forceps (not shown) and guided into the opening 310, and downward pressure is applied to gradually push its end into the iris. Subsequently, downward pressure acts on the protrusion 418 and is embedded in and associated with the iris, thereby securing the intraocular lens firmly on the iris. The above process is repeated for each support and the number of fastening members used depends on the particular implant 300 shape selected by the surgeon. In the related embodiment shown in FIGS. 31-33, the fastening member 512 is U-shaped, as best shown in FIG. 33, rather than being straight. The fastening member 512 includes an upper end 514 that can be inserted into the opening 510 of the support portion 508 on the intraocular lens 500. The lower end of the fastening member 512 is an edge 515. The cut-out portion that forms the flexible clasp or protrusion 518 is located in the immediate vicinity of the edge 515. The attachment is substantially the same as the embodiment shown in FIGS. 28 to 30 except that the fastening member 512 widens the support portion 508 on the lower side.

It goes without saying that the present invention can be implemented in other forms without departing from the concept and essential features of the invention. Accordingly, the foregoing description of the invention is in no way limiting and all modifications within the meaning and scope of the appended claims are intended to be embraced by the invention.

Cross section of human eye Cross section of a human eye with an implant according to the invention fixed to the iris of the eyeball The perspective view of the implant lens by this invention Plan view of an implant lens according to the invention End view of an implant lens according to the invention End view of an implant lens according to the invention Top view of an implant lens according to the invention having a tip in a second arrangement End view of an implant lens according to the invention having a tip in a second arrangement Plan view of an implant lens according to a second embodiment of the invention Sectional view along line AA of the embodiment of the implant lens of FIG. Plan view of an implant lens according to a second embodiment of the invention with a different support arrangement Sectional view along line AA of the embodiment of the implant lens of FIG. Top view of a second embodiment of an implant lens according to the present invention having a third arrangement tip Sectional view along line AA of the embodiment of the implant lens of FIG. Plan view of an implant lens according to a third embodiment of the invention Sectional view along line AA of the embodiment of the implant lens of FIG. 15 according to the present invention. Side view of the fixing means according to the invention pushed down to the iris through the support 1 is a perspective view of a staple insertion device according to the present invention. Exploded view of staple insertion instrument according to the present invention 1 is a perspective view of a portion of a staple insertion instrument according to the present invention. FIG. 6 is a perspective view of a finger portion that securely grasps a trap lock of a staple insertion device according to the present invention. FIG. 7 is a perspective view of the staple insertion device according to the present invention in an open state, a staple relaxation mode, of a finger portion that firmly grasps a trap lock; FIG. 6 is a perspective view of the staple insertion device according to the present invention in the staple grasping mode in the closed state of the finger portion firmly grasping the trap lock. FIG. 24 is a partially exploded perspective view of a finger portion for firmly grasping the staple insertion device of FIG. FIG. 6 is a perspective view of a finger portion that securely grasps a trap lock of a staple insertion device according to the present invention. 1 is an exploded view of a staple insertion device according to the present invention in an open state, a staple relaxation mode. FIG. FIG. 26 is a partially exploded perspective view of a finger portion for firmly grasping the staple insertion device of FIG. Plan view of an implant lens according to a fourth embodiment of the invention 28 is a cross-sectional view along the line AA of the embodiment of the implant lens of FIG. 28 according to the present invention. The perspective view of 4th Embodiment of the fixing | fixed part by this invention Plan view of an implant lens according to a fifth embodiment of the invention 31 is a cross-sectional view along the line AA of the embodiment of the implant lens of FIG. 31 according to the present invention. The perspective view of 5th Embodiment of the fixing | fixed part by this invention.

Explanation of symbols

  52 Iris, 100 Implant, 102 Optical Element, 110 Support, 118 Tip of Support, 200 Implant, 202 Optical Element, 210 Support, 230 Staple, 300 Implant, 302 Optical Element, 310 Support, 312 Fastening Member, 318 Protrusion part, 400 implant, 402 optical element, 410 support part, 412, 512 anchor, 418 protrusion part.

Claims (27)

An intraocular lens that is inserted and fixed in the eye,
Optical means comprising a front side, a rear side and an outer peripheral edge, producing a preselected optical effect;
Comprising support means coupled to the optical means,
The support means includes a fixing means that is in an outward direction from the optical means and that can penetrate at least a part of the iris to a depth shallower than its full thickness,
Thereby, an intraocular lens that can be easily implanted into the eye when the fixation means enters the iris and can be easily inserted and removed with minimal damage to the eye tissue. 2. The intraocular lens according to claim 1, wherein the supporting means are plural and flexible, and these supporting means exist in an outward direction from the optical means and are mutually connected. Are located at intervals,
At least one of the support means includes a proximal end and a distal end, the proximal end being coupled to the optical means, the end of the distal end being a pointed tip, the support means is characterized in that it comprises for maintaining the optical means described above, the raised portion being positioned spaced iris and spacing,
Thus, an intraocular lens that can be easily implanted into the eye when the tip of the support means enters the iris. 3. An intraocular lens according to claim 2, wherein said support means includes an intermediate portion located between the proximal and distal ends, the intermediate portion supporting the intraocular lens over the iris. Intraocular lens, characterized in that it includes shoulder means. 2. The intraocular lens according to claim 1, wherein the fixing means is constructed and arranged to penetrate up to about half of the iris thickness. 2. The intraocular lens according to claim 1, further comprising two pairs of support means present in opposite directions from said optical means, with the distal ends of each pair approaching inward from one another. Characteristic intraocular lens. 2. The intraocular lens according to claim 1, further comprising two pairs of support means present in opposite directions from said optical means, wherein the distal ends of each pair are spaced apart from each other in the outward direction. Characteristic intraocular lens. 2. The intraocular lens according to claim 1, wherein the optical means is foldable so that the intraocular lens is a small incision technique with little damage to the eye tissue. An intraocular lens that is insertable. An intraocular lens that is inserted and fixed in the eye and attached to the iris,
Optical means comprising a front side, a rear side and an outer peripheral edge, producing a preselected optical effect;
At least one support means coupled to said optical means;
Stapling means straddling over at least a portion of said support means,
This allows the intraocular lens to be easily implanted into the eye when attaching the staple means to the iris and to be easily inserted and removed with minimal damage to the eye tissue. The intraocular lens according to claim 8,
The stapling means is deformable from a first relaxed state to a second tension state,
Thereby, the stapling means is tensioned to straddle the support means, relaxed and attached to the iris to fix the position of the intraocular lens thereon. The intraocular lens according to claim 9, characterized in that the stapling means is compressed, placed in tension, placed on the support means and relaxed,
As a result, the stapling means expands and is attached to the iris to fix the position of the intraocular lens. 10. Intraocular lens according to claim 9, wherein the stapling means penetrates to about half of the iris thickness. 9. The intraocular lens according to claim 8, further comprising a pair of opposing support means that are present outwardly from the optical means. 10. The intraocular lens according to claim 9, wherein the support means includes a rising portion that holds the optical lens at a position spaced from the iris. The intraocular lens according to claim 9, wherein the optical means is foldable.
Accordingly, the intraocular lens can be inserted with a small incision technique with less damage to the eye tissue. An intraocular lens that is inserted and fixed in the eye,
Optical means comprising a front side, a rear side and an outer peripheral edge, producing a preselected optical effect;
Supporting means coupled to the optical means and including a plurality of holes defining an opening;
A fastening means for fixing the position of the intraocular lens on the iris, which is inserted into the hole and then spreads to catch the iris tissue with minimal damage to the eye tissue. Intraocular lens that can be easily inserted and removed. The intraocular lens according to claim 15,
The fastening means includes a shaft having an upper end and a lower end, the lower end includes a flexible protrusion, and the upper end has a diameter larger than the diameter of the opening,
This causes the protrusions to contract so that when the fastening means is inserted into the opening, the fastening means slides within the opening, and when exiting the opening, it catches the iris tissue, An intraocular lens that is embedded inside and attaches the intraocular lens to the iris. The intraocular lens according to claim 16,
The fastening means includes a pair of opposing protrusions,
Thereby, the protrusion is shrunk so that the fastening means slides in the opening when the fastening means is inserted into the opening, and the end of the opening when the fastening means is pushed further under the opening. An intraocular lens that exits and expands, hooks the iris tissue, is embedded in it, and thus attaches the intraocular lens to the iris. The intraocular lens according to claim 15, wherein the optical means is foldable. The intraocular lens according to claim 1, wherein the invasion of the iris is in the range of 0.1 mm to 1.0 mm. An intraocular lens that can be implanted into the eye and easily inserted and removed with minimal damage to the eye tissue,
Optical means comprising a front side, a rear side and an outer peripheral edge, producing a preselected optical effect;
Support means coupled to the optical means;
A fastening means for fixing the position of the intraocular lens on the iris;
The fastening means operates in conjunction with the support means to engage and grasp the iris tissue.
Intraocular lens. 21. The intraocular lens according to claim 20, wherein the support means includes an opening, and the fastening means is insertable into the opening. 23. The intraocular lens according to claim 21, wherein the fastening means includes a shaft having an upper end and a lower end, the lower end includes a protrusion, and the upper end has a diameter larger than the diameter of the opening. Features
Thus, when the fastening means is inserted into the opening, the protrusion is contracted so that the fixing means slides into the opening, and when the protrusion exits the opening, it catches the iris tissue and An intraocular lens that is embedded inside and thus attaches the intraocular lens to the iris. The intraocular lens according to claim 21, wherein the fastening means includes an upper end and Characterized in that it comprises a shaft having a lower end, the lower end is provided with a protrusion, the upper end is curvilinear and can be inserted into an opening;
Thereby, when the fastening means is inserted into the opening, the projections penetrate the iris tissue and are embedded therein, thus firmly fixing the intraocular lens to the iris. An intraocular lens that is inserted and fixed in the eye and can be easily inserted and removed with minimal damage to the eye tissue,
Optical means for producing a preselected optical effect, the optical means comprising a front side and a rear side;
Coupled to the optical means, and comprising support means in a direction outward from the optical means,
The supporting means includes fixing means for coupling the intraocular lens to the pupil, and the fixing means can be attached to the pupil between the muscles that control opening and closing of the pupil.
Intraocular lens. An instrument that holds the iris anchoring device and relaxes to a preselected position and can be used in one-handed surgical techniques,
Handle means for grasping said instrument;
When requested, it comprises a means for holding an iris fixing device,
Thereby, an instrument in which the iris fixing device can be attached to the iris. A fastening member that operates with the support part of the intraocular lens and can fix the position of the intraocular lens on the iris of the eye,
It has a shaft with an upper end and a lower end, the upper end can be coupled to the support, and the lower end is the end that fixes the iris,
The end of the end that fixes the iris is an edge, includes a cutout portion in the immediate vicinity of the edge, and defines an elongated protrusion edge,
Thus, when the elongated protrusion edge is pushed into the iris, the fastening member that firmly fixes the intraocular lens thereon. 27. A fastening member according to claim 26, wherein the support includes an opening, and the fastening member operates with the opening so that the support can be secured to the iris.

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